ETRI Journal
- Volume 28 Issue 1
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- Pages.99-102
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- 2006
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- 1225-6463(pISSN)
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- 2233-7326(eISSN)
Enhanced Dynamic Segment Protection in WDM Optical Networks under Reliability Constraints
- Guo, Lei (Key Lab of Broadband Optical Fiber Transmission and Communication Networks, the University of Electronic Science and Technology of China) ;
- Cao, Jin (Key Lab of Broadband Optical Fiber Transmission and Communication Networks, the University of Electronic Science and Technology of China) ;
- Yu, Hongfang (Key Lab of Broadband Optical Fiber Transmission and Communication Networks, the University of Electronic Science and Technology of China) ;
- Li, Lemin (Key Lab of Broadband Optical Fiber Transmission and Communication Networks, the University of Electronic Science and Technology of China)
- Received : 2005.07.12
- Published : 2006.02.28
Abstract
In this letter, we study the protection problem in wavelength division multiplexing (WDM) optical networks, and propose a novel dynamic heuristic algorithm called differentiated reliable segment protection (DRSP). Differing from previous work, DRSP can effectively avoid the trap problem and is able to find a feasible solution for each connection request. Therefore, DRSP outperforms the previous work. Simulation results have shown to be promising.